Liberals believe only in white supremacy. Liberalism is essentially a cover story for that, since openly believing in white supremacy is frowned upon.

Exactly. Or Western supremacy. They are forced to lie, so end up hiding and mystifying the truth, and the truth is that they are advocates of a supremacist system. The idea of the equality of mankind came before the reality of it. Now, the libs want their cake and eat it too. But equality was first thought of as equality within the bourgeois class. This idea spread along with the spread of bourgeois power but not the reality of material equality. I honestly think liberals are conscious liars.